USB: move routines in hcd.c
This patch (as939) moves a couple of routine in hcd.c around. The purpose is to put all the general URB- and endpoint-related routines (submit, unlink, giveback, and disable) together in one spot. There are no functional changes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1033,18 +1033,6 @@ done:
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/*-------------------------------------------------------------------------*/
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/* called in any context */
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int usb_hcd_get_frame_number (struct usb_device *udev)
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{
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struct usb_hcd *hcd = bus_to_hcd(udev->bus);
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if (!HC_IS_RUNNING (hcd->state))
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return -ESHUTDOWN;
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return hcd->driver->get_frame_number (hcd);
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}
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/*-------------------------------------------------------------------------*/
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/* this makes the hcd giveback() the urb more quickly, by kicking it
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* off hardware queues (which may take a while) and returning it as
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* soon as practical. we've already set up the urb's return status,
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@ -1167,6 +1155,35 @@ done:
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/*-------------------------------------------------------------------------*/
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/**
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* usb_hcd_giveback_urb - return URB from HCD to device driver
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* @hcd: host controller returning the URB
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* @urb: urb being returned to the USB device driver.
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* Context: in_interrupt()
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*
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* This hands the URB from HCD to its USB device driver, using its
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* completion function. The HCD has freed all per-urb resources
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* (and is done using urb->hcpriv). It also released all HCD locks;
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* the device driver won't cause problems if it frees, modifies,
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* or resubmits this URB.
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*/
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void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb)
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{
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urb_unlink(hcd, urb);
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usbmon_urb_complete (&hcd->self, urb);
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usb_unanchor_urb(urb);
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/* pass ownership to the completion handler */
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urb->complete (urb);
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atomic_dec (&urb->use_count);
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if (unlikely (urb->reject))
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wake_up (&usb_kill_urb_queue);
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usb_put_urb (urb);
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}
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EXPORT_SYMBOL (usb_hcd_giveback_urb);
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/*-------------------------------------------------------------------------*/
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/* disables the endpoint: cancels any pending urbs, then synchronizes with
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* the hcd to make sure all endpoint state is gone from hardware, and then
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* waits until the endpoint's queue is completely drained. use for
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@ -1260,6 +1277,18 @@ rescan:
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/*-------------------------------------------------------------------------*/
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/* called in any context */
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int usb_hcd_get_frame_number (struct usb_device *udev)
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{
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struct usb_hcd *hcd = bus_to_hcd(udev->bus);
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if (!HC_IS_RUNNING (hcd->state))
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return -ESHUTDOWN;
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return hcd->driver->get_frame_number (hcd);
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}
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/*-------------------------------------------------------------------------*/
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#ifdef CONFIG_PM
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int hcd_bus_suspend(struct usb_device *rhdev)
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@ -1394,35 +1423,6 @@ EXPORT_SYMBOL (usb_bus_start_enum);
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/*-------------------------------------------------------------------------*/
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/**
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* usb_hcd_giveback_urb - return URB from HCD to device driver
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* @hcd: host controller returning the URB
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* @urb: urb being returned to the USB device driver.
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* Context: in_interrupt()
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*
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* This hands the URB from HCD to its USB device driver, using its
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* completion function. The HCD has freed all per-urb resources
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* (and is done using urb->hcpriv). It also released all HCD locks;
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* the device driver won't cause problems if it frees, modifies,
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* or resubmits this URB.
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*/
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void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb)
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{
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urb_unlink(hcd, urb);
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usbmon_urb_complete (&hcd->self, urb);
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usb_unanchor_urb(urb);
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/* pass ownership to the completion handler */
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urb->complete (urb);
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atomic_dec (&urb->use_count);
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if (unlikely (urb->reject))
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wake_up (&usb_kill_urb_queue);
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usb_put_urb (urb);
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}
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EXPORT_SYMBOL (usb_hcd_giveback_urb);
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/*-------------------------------------------------------------------------*/
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/**
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* usb_hcd_irq - hook IRQs to HCD framework (bus glue)
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* @irq: the IRQ being raised
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